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47985693 = 3713117443
BaseRepresentation
bin1011011100001…
…1010000011101
310100021220222220
42313003100131
544241020233
64432255553
71121604660
oct267032035
9110256886
1047985693
11250a53a8
12140a15b9
139c31602
1465316d7
15432ceb3
hex2dc341d

47985693 has 16 divisors (see below), whose sum is σ = 73683456. Its totient is φ = 27209520.

The previous prime is 47985689. The next prime is 47985701. The reversal of 47985693 is 39658974.

47985693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47985693 - 22 = 47985689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47985653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5971 + ... + 11472.

It is an arithmetic number, because the mean of its divisors is an integer number (4605216).

Almost surely, 247985693 is an apocalyptic number.

It is an amenable number.

47985693 is a deficient number, since it is larger than the sum of its proper divisors (25697763).

47985693 is a wasteful number, since it uses less digits than its factorization.

47985693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17584.

The product of its digits is 1632960, while the sum is 51.

The square root of 47985693 is about 6927.1706345376. The cubic root of 47985693 is about 363.3880072779.

The spelling of 47985693 in words is "forty-seven million, nine hundred eighty-five thousand, six hundred ninety-three".

Divisors: 1 3 7 21 131 393 917 2751 17443 52329 122101 366303 2285033 6855099 15995231 47985693